[INFO] cloning repository https://github.com/zave7/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zave7/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzave7%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzave7%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a9fc25a3409513e3c6a81f065028b1696f0691aa
[INFO] testing zave7/rust against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzave7%2Frust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zave7/rust
[INFO] finished tweaking git repo https://github.com/zave7/rust
[INFO] tweaked toml for git repo https://github.com/zave7/rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zave7/rust on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zave7/rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fc3eec0c4e8eba821a9089d1a417a3c453c2c54ce5330d6f1a4299998e91045
[INFO] running `Command { std: "docker" "start" "-a" "6fc3eec0c4e8eba821a9089d1a417a3c453c2c54ce5330d6f1a4299998e91045", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fc3eec0c4e8eba821a9089d1a417a3c453c2c54ce5330d6f1a4299998e91045", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fc3eec0c4e8eba821a9089d1a417a3c453c2c54ce5330d6f1a4299998e91045", kill_on_drop: false }`
[INFO] [stdout] 6fc3eec0c4e8eba821a9089d1a417a3c453c2c54ce5330d6f1a4299998e91045
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2900abef657e560cf2f64bf7b6ca789a1ab9fc7ebb8be4b009930cef9eef74c
[INFO] running `Command { std: "docker" "start" "-a" "c2900abef657e560cf2f64bf7b6ca789a1ab9fc7ebb8be4b009930cef9eef74c", kill_on_drop: false }`
[INFO] [stderr]    Compiling helloworld2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `한글`
[INFO] [stdout]  --> src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let 한글 = "한글"; // 한글 변수도 가능해졌다.
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_한글`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsigned`
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let unsigned: u8 = 123;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsigned16`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let unsigned16 :u16 = 123;
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `letter`
[INFO] [stdout]   --> src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let letter = 'a'; // 4 bytes
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_letter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cat_face`
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let cat_face = '😹'; // char 는 유니코드
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cat_face`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third_number`
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let third_number = my_number + second_number as u16;
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numberWithType` should have a snake case name
[INFO] [stdout]   --> src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let numberWithType = 0u8; // 숫자 끝에 타입 지정 가능
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `number_with_type`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numberWithUnderscore` should have a snake case name
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let numberWithUnderscore = 1___2___3___i32; // 숫자 사이 및 타입 사이 언더스코어 삽입 가능
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `number_with_underscore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "c2900abef657e560cf2f64bf7b6ca789a1ab9fc7ebb8be4b009930cef9eef74c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2900abef657e560cf2f64bf7b6ca789a1ab9fc7ebb8be4b009930cef9eef74c", kill_on_drop: false }`
[INFO] [stdout] c2900abef657e560cf2f64bf7b6ca789a1ab9fc7ebb8be4b009930cef9eef74c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5772d4109dfcdcbd1fa58f13e092246d940cfee54117fd5cc41203e746e03cc
[INFO] running `Command { std: "docker" "start" "-a" "a5772d4109dfcdcbd1fa58f13e092246d940cfee54117fd5cc41203e746e03cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling helloworld2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `한글`
[INFO] [stdout]  --> src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let 한글 = "한글"; // 한글 변수도 가능해졌다.
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_한글`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsigned`
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let unsigned: u8 = 123;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unsigned16`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let unsigned16 :u16 = 123;
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `letter`
[INFO] [stdout]   --> src/main.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let letter = 'a'; // 4 bytes
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_letter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cat_face`
[INFO] [stdout]   --> src/main.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let cat_face = '😹'; // char 는 유니코드
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cat_face`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third_number`
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let third_number = my_number + second_number as u16;
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numberWithType` should have a snake case name
[INFO] [stdout]   --> src/main.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let numberWithType = 0u8; // 숫자 끝에 타입 지정 가능
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `number_with_type`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `numberWithUnderscore` should have a snake case name
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let numberWithUnderscore = 1___2___3___i32; // 숫자 사이 및 타입 사이 언더스코어 삽입 가능
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `number_with_underscore`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "a5772d4109dfcdcbd1fa58f13e092246d940cfee54117fd5cc41203e746e03cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5772d4109dfcdcbd1fa58f13e092246d940cfee54117fd5cc41203e746e03cc", kill_on_drop: false }`
[INFO] [stdout] a5772d4109dfcdcbd1fa58f13e092246d940cfee54117fd5cc41203e746e03cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e13be1fe7d6765715809ff8a6585cad0f0ce8645adb25f928c5b0c0712cb5d1f
[INFO] running `Command { std: "docker" "start" "-a" "e13be1fe7d6765715809ff8a6585cad0f0ce8645adb25f928c5b0c0712cb5d1f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `한글`
[INFO] [stderr]  --> src/main.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let 한글 = "한글"; // 한글 변수도 가능해졌다.
[INFO] [stderr]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_한글`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unsigned`
[INFO] [stderr]   --> src/main.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let unsigned: u8 = 123;
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `unsigned16`
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let unsigned16 :u16 = 123;
[INFO] [stderr]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unsigned16`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `letter`
[INFO] [stderr]   --> src/main.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let letter = 'a'; // 4 bytes
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_letter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cat_face`
[INFO] [stderr]   --> src/main.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let cat_face = '😹'; // char 는 유니코드
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_cat_face`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `third_number`
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let third_number = my_number + second_number as u16;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_number`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `numberWithType` should have a snake case name
[INFO] [stderr]   --> src/main.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let numberWithType = 0u8; // 숫자 끝에 타입 지정 가능
[INFO] [stderr]    |         ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `number_with_type`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `numberWithUnderscore` should have a snake case name
[INFO] [stderr]   --> src/main.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let numberWithUnderscore = 1___2___3___i32; // 숫자 사이 및 타입 사이 언더스코어 삽입 가능
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `number_with_underscore`
[INFO] [stderr] 
[INFO] [stderr] warning: `helloworld2` (bin "helloworld2" test) generated 8 warnings (run `cargo fix --bin "helloworld2" -p helloworld2 --tests` to apply 6 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/helloworld2-e4a33a69c9ed33fd)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e13be1fe7d6765715809ff8a6585cad0f0ce8645adb25f928c5b0c0712cb5d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e13be1fe7d6765715809ff8a6585cad0f0ce8645adb25f928c5b0c0712cb5d1f", kill_on_drop: false }`
[INFO] [stdout] e13be1fe7d6765715809ff8a6585cad0f0ce8645adb25f928c5b0c0712cb5d1f